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don't attempt to draw outline when brush is empty

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sheaf 2020-09-05 15:35:01 +02:00
parent a098eb6471
commit 930fa0ebf9
3 changed files with 41 additions and 24 deletions
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11
src/app/MetaBrush/Action.hs
View file

@ -383,6 +383,17 @@ data Redo = Redo
instance HandleAction Redo where
handleAction _ _ _ = pure ()
---------------------
-- Discard changes --
---------------------
data DiscardChanges = DiscardChanges
deriving stock Show
-- TODO
instance HandleAction DiscardChanges where
handleAction _ _ _ = pure ()
---------
-- Cut --
---------

42
src/app/MetaBrush/UI/Menu.hs
View file

@ -134,16 +134,17 @@ data FileMenu ( rt :: ResourceType )
data EditMenu ( rt :: ResourceType )
= EditMenu
{ undo :: !( MenuItem Undo NoSubresource rt )
, redo :: !( MenuItem Redo NoSubresource rt )
, editSep1 :: !( Separator rt )
, cut :: !( MenuItem Cut NoSubresource rt )
, copy :: !( MenuItem Copy NoSubresource rt )
, paste :: !( MenuItem Paste NoSubresource rt )
, duplicate :: !( MenuItem Duplicate NoSubresource rt )
, delete :: !( MenuItem Delete NoSubresource rt )
, editSep2 :: !( Separator rt )
, preferences :: !( MenuItem () NoSubresource rt )
{ undo :: !( MenuItem Undo NoSubresource rt )
, redo :: !( MenuItem Redo NoSubresource rt )
, discardChanges :: !( MenuItem DiscardChanges NoSubresource rt )
, editSep1 :: !( Separator rt )
, cut :: !( MenuItem Cut NoSubresource rt )
, copy :: !( MenuItem Copy NoSubresource rt )
, paste :: !( MenuItem Paste NoSubresource rt )
, duplicate :: !( MenuItem Duplicate NoSubresource rt )
, delete :: !( MenuItem Delete NoSubresource rt )
, editSep2 :: !( Separator rt )
, preferences :: !( MenuItem () NoSubresource rt )
}
deriving stock Generic
@ -191,16 +192,17 @@ fileMenuDescription
editMenuDescription :: EditMenu Description
editMenuDescription
= EditMenu
{ undo = MenuItemDescription "Undo" [ "submenuItem" ] Undo ( Just ( GDK.KEY_Z, [ Control L ] ) ) NoSubresource
, redo = MenuItemDescription "Redo" [ "submenuItem" ] Redo ( Just ( GDK.KEY_Y, [ Control L ] ) ) NoSubresource
, editSep1 = SeparatorDescription [ "submenuSeparator" ]
, cut = MenuItemDescription "Cut" [ "submenuItem" ] Cut ( Just ( GDK.KEY_X, [ Control L ] ) ) NoSubresource
, copy = MenuItemDescription "Copy" [ "submenuItem" ] Copy ( Just ( GDK.KEY_C, [ Control L ] ) ) NoSubresource
, paste = MenuItemDescription "Paste" [ "submenuItem" ] Paste ( Just ( GDK.KEY_V, [ Control L ] ) ) NoSubresource
, duplicate = MenuItemDescription "Duplicate" [ "submenuItem" ] Duplicate ( Just ( GDK.KEY_D, [ Control L ] ) ) NoSubresource
, delete = MenuItemDescription "Delete" [ "submenuItem" ] Delete ( Just ( GDK.KEY_Delete, [] ) ) NoSubresource
, editSep2 = SeparatorDescription [ "submenuSeparator" ]
, preferences = MenuItemDescription "Preferences" [ "submenuItem" ] () ( Just ( GDK.KEY_P, [ Control L, Shift L ] ) ) NoSubresource
{ undo = MenuItemDescription "Undo" [ "submenuItem" ] Undo ( Just ( GDK.KEY_Z, [ Control L ] ) ) NoSubresource
, redo = MenuItemDescription "Redo" [ "submenuItem" ] Redo ( Just ( GDK.KEY_Y, [ Control L ] ) ) NoSubresource
, discardChanges = MenuItemDescription "Discard changes" [ "submenuItem" ] DiscardChanges ( Just ( GDK.KEY_Z, [ Control L, Shift L ] ) ) NoSubresource
, editSep1 = SeparatorDescription [ "submenuSeparator" ]
, cut = MenuItemDescription "Cut" [ "submenuItem" ] Cut ( Just ( GDK.KEY_X, [ Control L ] ) ) NoSubresource
, copy = MenuItemDescription "Copy" [ "submenuItem" ] Copy ( Just ( GDK.KEY_C, [ Control L ] ) ) NoSubresource
, paste = MenuItemDescription "Paste" [ "submenuItem" ] Paste ( Just ( GDK.KEY_V, [ Control L ] ) ) NoSubresource
, duplicate = MenuItemDescription "Duplicate" [ "submenuItem" ] Duplicate ( Just ( GDK.KEY_D, [ Control L ] ) ) NoSubresource
, delete = MenuItemDescription "Delete" [ "submenuItem" ] Delete ( Just ( GDK.KEY_Delete, [] ) ) NoSubresource
, editSep2 = SeparatorDescription [ "submenuSeparator" ]
, preferences = MenuItemDescription "Preferences" [ "submenuItem" ] () ( Just ( GDK.KEY_P, [ Control L, Shift L ] ) ) NoSubresource
}
viewMenuDescription :: ViewMenu Description

12
src/lib/Math/Bezier/Stroke.hs
View file

@ -113,9 +113,13 @@ stroke Empty = Left Empty
stroke ( spt0 :<| Empty ) = Left . removePointData $ ( Point2D 0 0 --> coords spt0 :: Vector2D Double ) • brushShape @x spt0
stroke allPts@( spt0 :<| spt1 :<| spts )
| isClosed
= Right ( fwdPts, bwdPts )
= if null ( brushShape @x spt0 )
then Right ( Empty, Empty )
else Right ( fwdPts, bwdPts )
| otherwise
= Left ( startingCap <> fwdPts <> bwdPts )
= if null ( brushShape @x spt0 )
then Left Empty
else Left ( startingCap <> fwdPts <> bwdPts )
where
startOffset, endOffset :: Vector2D Double
@ -124,9 +128,9 @@ stroke allPts@( spt0 :<| spt1 :<| spts )
startOffset = Point2D 0 0 --> coords spt0
tgt_start = coords spt0 --> coords spt1
( tgt_end, endOffset, brush_end ) = case allPts of
_ :|> sptnm1 :|> sptn -> ( coords sptnm1 --> coords sptn, Point2D 0 0 --> coords sptn, brushShape sptn )
_ :|> sptnm1 :|> sptn -> ( coords sptnm1 --> coords sptn, Point2D 0 0 --> coords sptn, brushShape @x sptn )
_ -> error "impossible"
brush_start = brushShape spt0
brush_start = brushShape @x spt0
isClosed :: Bool
isClosed = case ( spt1 :<| spts ) of